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3 years ago

PLEASE ANSWER THIS

Mathematics

1 answer:

SVEN [57.7K]3 years ago

5 0

The degree is 2 becasuse of the x^2 and there are 3 terms so it is a trinomial.

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There are 36 total people in the movie theater and the ratio of adults to children is 4 to 2. How many kids are in the movie the

Pepsi [2]

Answer:

12 kids are in the theater.

Step-by-step explanation:

4+2=6

36÷6=6

6×2=12

So, 12 kids are in the theater.

6 0

3 years ago

NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW!!! THIS IS NOT A TEST OR AN ASSESSMENT!! Please help me with these math questions

Art [367]

Answer:

See below

Step-by-step explanation:

3. What are two ways that a vector can be represented?

Considering a vector $\vec{v}$ in some vector space $\mathbb R^n$ we have

$\vec{v} = \langle a,b\rangle$

This is the component form. I don't like that way. It is probably used in high school, but

$\vec{v} = \begin{pmatrix} a\\ b\\ \end{pmatrix}$

is preferable because the inner product on $\mathbb R^n$ is defined to be

$\langle a,b\rangle := \sum_{i = 1}^n a_i b_i$

You can also write it using linear form such as $\vec{v} = 2i+2j$

For this question, I think you meant

vectors

$\vec{u_1} = (-8, 12)$

$\vec{u_2} = (13, 15)$

Once

$\cos(\theta)=\dfrac{\vec{u_1} \cdot\vec{u_2}}{||\vec{u_1}||||\vec{u_2}||}$

Considering that the dot product is

$\vec{u_1}\cdot \vec{u_2} = (-8)\cdot 13 + 12\cdot 15 = -104+180= 76$

and the norm of $\vec{u_1}$ is $||\vec{u_1}|| = \sqrt{(-8)^2 + 12^2} = \sqrt{64 + 144}= \sqrt{208}$

and the norm of $\vec{u_2}$ is $||\vec{u_2}|| = \sqrt{13^2 + 15^2} = \sqrt{169 + 225}= \sqrt{394}$

Thus,

$\cos(\theta)=\dfrac{76}{\sqrt{208} \sqrt{394}} = \dfrac{19}{\sqrt{13}\sqrt{394}}=\dfrac{19}{\sqrt{5122}}$

$\therefore \theta = \arccos \left(\dfrac{19}{\sqrt{5122}} \right)$

3 0

3 years ago

Just need to know the fraction

Reptile [31]

<h3>Answer: 1/2</h3>

The midsegment is always exactly half as long compared to the side it's parallel to.

Put another way, the longer side (4x+20) is twice long as the midsegment (3x).

7 0

3 years ago

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In ΔUVW, the measure of ∠W=90°, UV = 71 feet, and VW = 11 feet. Find the measure of ∠V to the nearest degree

Artyom0805 [142]

Answer:

81°

Step-by-step explanation:

Please refer to the attachment(s) for explanations

5 0

3 years ago

A pair of shoes that normally sells for $82.88 goes on sale for 35% off. Rounding up to the nearest cent, calculate the sale pri

Maksim231197 [3]

Answer:

$54.00

Step-by-step explanation:

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2 years ago

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